Question: What was the sister city of Sagmihara with 2731571 inhabitants?
Paraphrase: What was once the sister town of Sagmihara with 2731571 inhabitants?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q209779 wdt:P190 ?answer . ?answer wdt:P1082 ?x FILTER(contains(?x , '2731571'))}
Answer: Toronto